.product a {
    display: inline-block;
    margin-top: 10px;
    text-decoration: none;
    color: #fff;
    /* 文字颜色 */
    background-color: #4CAF50;
    /* 绿色背景 */
    padding: 8px 16px;
    border-radius: 25px;
    /* 圆角按钮 */
    font-weight: bold;
    transition: background-color 0.3s ease, transform 0.2s ease;
}

.product a:hover {
    background-color: #45a049;
    /* 悬停变深绿 */
    transform: scale(1.05);
    /* 轻微放大 */
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}